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789e516097
The data structure of the `bi2.bin` file in which the simulated memory size is set: > **13.2 Disk header Information** > > this is loaded to the Address in `0x800000f4` when a disc is initialized by the IPL > > | offset | end | size | Description | > | :------: | --- | :--: | --------------------- | > | `0x0000` | | 4 | Debug-monitor Size | > | `0x0004` | | 4 | Simulated Memory Size | > | `0x0008` | | 4 | Argument offset | > | `0x000c` | | 4 | Debug flag | > | `0x0010` | | 4 | Track Location | > | `0x0014` | | 4 | Track size | > | `0x0018` | | 4 | Countrycode | > | `0x001c` | | 4 | ? | See https://hitmen.c02.at/files/yagcd/yagcd/chap13.html#sec13.2. Most GameCube games set the value to `24 MiB`, which matches the physical memory size. Most Wii games set the value to `0 MiB` (unset). The debug build of _Mario Kart: Double Dash!!_ is one game that sets the value to `48 MiB`.
61 lines
2.2 KiB
C++
61 lines
2.2 KiB
C++
// Copyright 2020 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <array>
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#include <optional>
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#include <string>
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#include "Common/CommonTypes.h"
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#include "Common/Crypto/SHA1.h"
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#include "DiscIO/Volume.h"
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namespace DiscIO
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{
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class VolumeDisc : public Volume
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{
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public:
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struct BootID
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{
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u32 magic; // 0x00 (Always BTID)
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std::array<uint32_t, 3> unknown0;
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std::array<uint32_t, 4> unknown1;
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std::array<char, 4> mediaboard_type; // 0x20 (GCAM for Triforce)
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uint32_t unknown2;
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uint16_t year; // 0x28
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uint8_t month; // 0x2A
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uint8_t day; // 0x2B
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uint8_t video_mode; // 0x2C unknown bitmask, resolutions + horizontal/vertical
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uint8_t unknown3;
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uint8_t type_3_compatible; // 0x2E (Type-3 compatible titles have this set to 1)
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uint8_t unknown4;
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std::array<char, 8> game_id; // 0x30
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uint32_t region_flags; // 0x38
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std::array<uint32_t, 9> unknown6;
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std::array<char, 0x20> manufacturer; // 0x60
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std::array<char, 0x20> game_name; // 0x80
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std::array<char, 0x20> game_executable; // 0xA0
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std::array<char, 0x20> test_executable; // 0xC0
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std::array<std::array<char, 0x20>, 8> credit_types; // 0xE0
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};
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std::string GetGameID(const Partition& partition = PARTITION_NONE) const override;
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Country GetCountry(const Partition& partition = PARTITION_NONE) const override;
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std::string GetMakerID(const Partition& partition = PARTITION_NONE) const override;
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std::optional<u16> GetRevision(const Partition& partition = PARTITION_NONE) const override;
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std::string GetInternalName(const Partition& partition = PARTITION_NONE) const override;
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std::string GetApploaderDate(const Partition& partition) const override;
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std::optional<u8> GetDiscNumber(const Partition& partition = PARTITION_NONE) const override;
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u32 GetSimulatedMemorySize() const override;
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bool IsNKit() const override;
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protected:
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Region RegionCodeToRegion(std::optional<u32> region_code) const;
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void AddGamePartitionToSyncHash(Common::SHA1::Context* context) const;
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};
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static_assert(sizeof(VolumeDisc::BootID) == 480);
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} // namespace DiscIO
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